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- Title
Ultrasonic-assisted solution combustion synthesis of porous NaV(PO)/C: formation mechanism and sodium storage performance.
- Authors
Chen, Qiuyun; Liu, Qing; Chu, Xiangcheng; Zhang, Yiling; Yan, Youwei; Xue, Lihong; Zhang, Wuxing
- Abstract
Solution combustion synthesis (SCS) is an effective and rapid method for synthesizing nanocrystalline materials. However, the control over size, morphology, and microstructure are rather limited in SCS. Here, we develop a novel ultrasonic-assisted solution combustion route to synthesize the porous and nano-sized NaV(PO)/C composites, and reveal the effects of ultrasound on the structural evolution of NVP/C. Due to the cavitation effects generated from ultrasonic irradiation, the ultrasonic-assisted SCS can produce honeycomb precursor, which can be further transformed into porous NaV(PO)/C with reticular and hollow structures after thermal treatment. When used as cathode material for Na-ion batteries, the porous NaV(PO)/C delivers an initial discharge capacity of 118 mAh g at 0.1 C and an initial coulombic efficiency of 85%. It can retain 93.8% of the initial capacity after 120 cycles at 0.2 C. The results demonstrate that ultrasonic-assisted SCS can be a new strategy to design crystalline nanomaterials with tunable microstructures.
- Subjects
MONOCALCIUM phosphate; SELF-propagating high-temperature synthesis; POROUS materials; NANOCRYSTAL synthesis; MICROSTRUCTURE
- Publication
Journal of Nanoparticle Research, 2017, Vol 19, Issue 4, p1
- ISSN
1388-0764
- Publication type
Article
- DOI
10.1007/s11051-017-3828-4